Q: What are the prime factors of the number 142,545,208?

 A: 2, 13, 29, 151, 313

Why are those the prime factors of the number 142,545,208?

Prime factors are the prime numbers that can be multipled together to equal the original number. You find the factors by dividing by prime numbers. It is best shown by creating a Factor Tree.

Factor Tree for the number 142,545,208

142,545,208
Factor Arrows
271,272,604
Factor Arrows
235,636,302
Factor Arrows
217,818,151
Factor Arrows
131,370,627
Factor Arrows
2947,263
Factor Arrows
151313

The numbers in bold above are the prime factors. If there are multiples, you only count them one time. This leads us to our prime factors of:

2, 13, 29, 151, 313

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 13 x 29 x 151 x 313 = 142,545,208

This can also be written as 23 x 131 x 291 x 1511 x 3131 = 142,545,208

If you would like to know more, or need additional explanation, please review our prime factorization explanation.


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